Device for locating a right or left position of a tire and wheel assembly of a vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01P-003/00
G01C-009/00
G01C-019/00
출원번호
US-0271540
(2008-11-14)
등록번호
US-8095333
(2012-01-10)
우선권정보
FR-07 59448 (2007-11-30)
발명자
/ 주소
Penot, Thierry
Huchard, Xavier
Villien, Christophe
Dauve, Sébastien
Alcouffe, François
출원인 / 주소
Michelin Recherche et Technique, S.A.
대리인 / 주소
Fitzpatrick, Cella, Harper & Scinto
인용정보
피인용 횟수 :
3인용 특허 :
8
초록▼
A location device is provided, in which the device is configured to be carried by a tire and wheel assembly so as to locate a right or left position of the assembly in a vehicle. The device includes two magnetic sensors with axes of maximum sensitivity; a measurement circuit for measuring a signal a
A location device is provided, in which the device is configured to be carried by a tire and wheel assembly so as to locate a right or left position of the assembly in a vehicle. The device includes two magnetic sensors with axes of maximum sensitivity; a measurement circuit for measuring a signal across terminals of each of the magnetic sensors, the measurement circuit being able to deliver two periodic signals phase-shifted with respect to one another and each periodic signal being representative of variations in values of a magnetic field detected by a corresponding magnetic sensor during a revolution of the tire and wheel assembly; and a calculation processor programmed to determine, based on the phase shift between the two periodic signals, a direction of rotation of the tire and wheel assembly, and to deduce from the direction of rotation and a direction of travel of the vehicle, a right or left location of the tire and wheel assembly. The two magnetic sensors have their axes of maximum sensitivity oriented in parallel, and in the two magnetic sensors are configured to be placed on the tire and wheel assembly at distinct azimuths.
대표청구항▼
1. A location device configured to be carried by a tire and wheel assembly so as to locate a right or left position of the assembly in a vehicle, the device comprising: two magnetic sensors with axes of maximum sensitivity;a measurement circuit for measuring a signal across terminals of each of the
1. A location device configured to be carried by a tire and wheel assembly so as to locate a right or left position of the assembly in a vehicle, the device comprising: two magnetic sensors with axes of maximum sensitivity;a measurement circuit for measuring a signal across terminals of each of the magnetic sensors, the measurement circuit being able to deliver two periodic signals phase-shifted with respect one another and each periodic signal representative of variations in values of a magnetic field detected by a corresponding magnetic sensor during a revolution of the tire and wheel assembly; anda calculation processor programmed to determine, based on the phase shift between the two periodic signals, a direction of rotation of the tire and wheel assembly, and to deduce, from the direction of rotation and a direction of travel of the vehicle, a right or left location of the tire and wheel assembly, wherein the two magnetic sensors have the axes of maximum sensitivity oriented in parallel, andwherein the two magnetic sensors are configured to be placed on the tire and wheel assembly at respective azimuths, andwherein the two magnetic sensors are configured to be placed on the tire and wheel assembly such that the axes of maximum sensitivity are oriented parallel to a rotation axis of the tire and wheel assembly. 2. A device according to claim 1, wherein the two magnetic sensors are configured to be placed on the tire and wheel assembly at substantially a same distance from a rotation axis of the assembly. 3. A device according to claim 1, wherein the axes of maximum sensitivity of the two magnetic sensors coincide. 4. A device according to claim 1, wherein the two magnetic sensors are configured to be placed on the tire and wheel assembly with the axes of maximum sensitivity oriented circumferentially at a same distance from a rotation axis of the tire and wheel assembly. 5. A device according to claim 1, wherein a circumferential distance between centers of the two magnetic sensors lies between about 1 cm and 8 cm. 6. A device according to claim 1, wherein the calculation processor is programmed to determine a sign of the phase shift between the two periodic signals by intercorrelating the two periodic signals. 7. A device according to claim 1, wherein the device is configured to be fixed to a valve for inflating the tire and wheel assembly. 8. A device according to claim 1, wherein the device is incorporated in a tire to be utilized with the tire and wheel assembly. 9. A device according to claim 1, wherein the device is incorporated in a wheel to be utilized with the tire and wheel assembly. 10. A location device configured to be carried by a tire and wheel assembly so as to locate a right or left position of the assembly in a vehicle, the device comprising: a plurality of magnetic sensors with axes of maximum sensitivity;a measurement circuit for measuring a signal across terminals of each of the magnetic sensors, the measurement circuit being able to deliver two periodic signals phase-shifted with respect one another, the two periodic signals being measured from two of the plurality of magnetic sensors, and each periodic signal being representative of variations in values of a magnetic field detected by a corresponding magnetic sensor during a revolution of the tire and wheel assembly; anda calculation processor programmed to determine, based on the phase shift between the two periodic signals, a direction of rotation of the tire and wheel assembly, and to deduce, from the direction of rotation and a direction of travel of the vehicle, a right or left location of the tire and wheel assembly, wherein the two magnetic sensors have the axes of maximum sensitivity oriented in parallel,wherein the two magnetic sensors are configured to be placed on the tire and wheel assembly at respective azimuths, andwherein the two magnetic sensors are configured to be placed on the tire and wheel assembly such that the axes of maximum sensitivity are oriented parallel to a rotation axis of the tire and wheel assembly. 11. A device according to claim 10, wherein the two magnetic sensors are configured to be placed on the tire and wheel assembly at substantially a same distance from a rotation axis of the assembly. 12. A device according to claim 10, wherein the axes of maximum sensitivity of the two magnetic sensors coincide. 13. A device according to claim 10, wherein the two magnetic sensors are configured to be placed on the tire and wheel assembly with the axes of maximum sensitivity oriented circumferentially at a same distance from a rotation axis of the tire and wheel assembly. 14. A device according to claim 10, wherein a circumferential distance between centers of the two magnetic sensors lies between about 1 cm and 8 cm. 15. A device according to claim 10, wherein the calculation processor is programmed to determine a sign of the phase shift between the two periodic signals by intercorrelating the two periodic signals. 16. A device according to claim 10, wherein the device is configured to be fixed to a valve for inflating the tire and wheel assembly. 17. A device according to claim 10, wherein the device is incorporated in a tire to be utilized with the tire and wheel assembly. 18. A device according to claim 10, wherein the device is incorporated in a wheel to be utilized with the tire and wheel assembly.
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이 특허에 인용된 특허 (8)
Kalb Roland (Rossach DEX), Apparatus for detecting speed and direction of rotation with a single magnetic sensor.
Penot, Thierry; Daumas, Franck; Huchard, Xavier; Villien, Christophe, Device for locating whether a wheel-tire assembly is positioned on the right or the left of a vehicle.
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